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Nanostructure and Oxidation Reactivity of Nascent Soot Particles in Ethylene/Pentanol Flames

Author

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  • Yaoyao Ying

    (MIIT Key Laboratory of Thermal Control of Electronic Equipment, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
    Advanced Combustion Laboratory, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
    These authors contributed equally to this work.)

  • Chenxuan Xu

    (Advanced Combustion Laboratory, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
    These authors contributed equally to this work.)

  • Dong Liu

    (MIIT Key Laboratory of Thermal Control of Electronic Equipment, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
    Advanced Combustion Laboratory, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

  • Bo Jiang

    (MIIT Key Laboratory of Thermal Control of Electronic Equipment, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
    Advanced Combustion Laboratory, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

  • Pengfei Wang

    (MIIT Key Laboratory of Thermal Control of Electronic Equipment, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
    Advanced Combustion Laboratory, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

  • Wei Wang

    (MIIT Key Laboratory of Thermal Control of Electronic Equipment, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
    Advanced Combustion Laboratory, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

Abstract

As byproducts of the combustion process of hydrocarbon fuels, soot particles are difficult to remove, and they can greatly harm human health and pollute the environment. Therefore, the formation and growth processes of the soot particles has become a study focus of researchers. In this paper, the nanostructure and oxidation reactivity of carbonaceous particles collected from ethylene inverse diffusion flames with or without the additions of three pentanol isomers (1-pentanol, 3-methyl-1-butanol, and 2-methyl-1-butanol) were investigated in detail. The nanostructure and oxidation characteristics of nascent soot particles were characterized using high resolution transmission electron microscopy (HRTEM), X-ray diffractometry (XRD) and thermogravimetric analysis (TGA). It was found that the nascent soot cluster of pure ethylene flame had a loose structure, while the additions of pentanol isomers made the soot agglomerates more compact and delayed the growth of graphitic structures. The pentanol isomer additions also contributed to a higher disorder of the crystallite arrangement in the soot nanostructure. According to the TGA experiments, the results showed that the addition of pentanol isomers enhanced the oxidation reactivity of soot particles, which could help to reduce soot particle emissions.

Suggested Citation

  • Yaoyao Ying & Chenxuan Xu & Dong Liu & Bo Jiang & Pengfei Wang & Wei Wang, 2017. "Nanostructure and Oxidation Reactivity of Nascent Soot Particles in Ethylene/Pentanol Flames," Energies, MDPI, vol. 10(1), pages 1-16, January.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:1:p:122-:d:88255
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    References listed on IDEAS

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    Cited by:

    1. Duan, Jiaqi & Ying, Yaoyao & Liu, Dong, 2019. "Novel nanoscale control on soot formation by local CO2 micro-injection in ethylene inverse diffusion flames," Energy, Elsevier, vol. 179(C), pages 697-708.
    2. Yuehan Qiao & Gang Lyu & Chonglin Song & Xingyu Liang & Huawei Zhang & Dong Dong, 2019. "Optimization of Programmed Temperature Vaporization Injection for Determination of Polycyclic Aromatic Hydrocarbons from Diesel Combustion Process," Energies, MDPI, vol. 12(24), pages 1-13, December.
    3. Luo, Minye & Liu, Dong, 2018. "Effects of dimethyl ether addition on soot formation, evolution and characteristics in flame-wall interactions," Energy, Elsevier, vol. 164(C), pages 642-654.
    4. Wei Wang & Dong Liu & Yaoyao Ying & Guannan Liu & Ye Wu, 2017. "On the Response of Nascent Soot Nanostructure and Oxidative Reactivity to Photoflash Exposure," Energies, MDPI, vol. 10(7), pages 1-11, July.
    5. Bo Jiang & Pengfei Wang & Yaoyao Ying & Minye Luo & Dong Liu, 2018. "Nanoscale Characteristics and Reactivity of Nascent Soot from n -Heptane/2,5-Dimethylfuran Inverse Diffusion Flames with/without Magnetic Fields," Energies, MDPI, vol. 11(7), pages 1-21, July.

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